Ishikawa brand riser fever tonic

Subsidiary Classification： Product knowledge

Release time：2024-02-20

Ishikawa brand riser fever tonic

As we all know, casting in the solidification process will produce shrinkage and shrinkage defects, which is also a very headache for the casting industry. The traditional treatment method is to add the corresponding riser to make up the casting solidification process. However, due to the many factors affecting the production of castings, it is impossible to rely on the feeding of the riser to achieve the desired effect, resulting in a high scrap rate of castings. In order to improve the effect of feeding, now more is the riser covering agent, covering agent has played a certain role in heat preservation, but the riser after cooling its surface shape is still flat, and did not play the role of heating and feeding. Ishikawa brand riser feeding agent effectively solves the problem of casting feeding.

　　The principle of feeder is as follows

(1) Delaying the solidification time of the riser and using the riser feeding agent can make the solidification time of the riser much later than the solidification time of the casting, so as to achieve the full feeding of the casting. It not only has the function of covering and heat preservation, but also has the function of heating and shrinking. The shape of the riser after cooling is a deep U-shape, indicating that the molten iron in the riser is all shrunk into the casting. Often the shrinkage porosity of castings is the lack of this small amount of molten steel, which is also the essential difference between riser heating and feeding agent and ordinary covering agent.

(2) Reduce the setting of the riser to ensure the molten steel required for casting feeding. When we are producing large castings, in order to ensure the full feeding of the castings, we often make the riser very large, which greatly increases the cost of the castings and makes the products uncompetitive. The use of riser feeding agent can make full use of the amount of steel in the riser, reducing unnecessary waste, the setting of the riser can be reduced by 30%-50%, and the casting will not produce defects such as shrinkage porosity and shrinkage cavity, effectively reducing the rejection rate of the casting, reducing the cost of the casting, and increasing the process yield by about 8%. After calculation, 1,000kg of riser heating feeding agent is used, can create about 22,000 yuan of wealth.

(3) After feeding agent is added to the riser (pouring cup), the solidification time of the riser is delayed (10-20 minutes later than the solidification time of the body), so that the oxides, carbides, gases, etc. in the cavity have enough floating time to float up to the riser (pouring gate), which is the last line of defense to eliminate the slag pores of the casting.

　　The riser feeding agent is used as follows

(1) After pouring molten steel, immediately add the feeder evenly to the riser, with a thickness of 2-3cm, and try not to expose the liquid level in the riser to the air.

(2) the scope of use of riser feeding agent: suitable for cast iron, cast steel, alloy steel, stainless steel and other casting types of materials, as well as a variety of different methods of casting types, such as coated sand casting, resin sand casting, lost foam casting and so on.

(3) Preservation method of riser feeding agent: The riser feeding agent that has been opened and in use should not be exposed to the air for a long time to avoid moisture.

　　Main components of riser heating supplement

Aluminum powder 25-30%,Al2O3:30-40%,SiO2:15-25%,Fe2O3:5-10%.

Ishikawa brand riser tonic is easy to operate, low in price and high in quality. You will definitely get the high quality castings you need.

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